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Physician Assistant

Ainsley A. O Garro, PA

Works at hospitals in Randallstown, MD · Maryland

Summary

Ainsley A. O Garro, PA is a physician assistant at 200 Memorial Ave, Westminster, MD 21157. Phone: (410) 871-6700. Accepts Medicare assignment. In 2024, Ainsley A. O Garro had 301 Original Medicare patients and 367 services. NPI 1841404720. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Physician assistant
  • Address: 200 Memorial Ave, Westminster, MD 21157 · Directions (1 more location)
  • Phone: (410) 871‑6700
  • Medicare: Accepts Medicare assignment
  • Hospital: Northwest Hospital Center
  • Group practice: Emergency Medicine Associates P.A., P.C. (+1 more)
  • School: graduated 1996
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ainsley A. O Garro, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ainsley A. O Garro accept Medicare assignment?
Yes. Medicare's clinician data says Ainsley A. O Garro accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ainsley A. O Garro see?
In 2024, CMS data shows 301 Original Medicare patients and 367 services for Ainsley A. O Garro. This counts Original Medicare only and measures volume, not quality.
What is Ainsley A. O Garro's NPI number?
1841404720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ainsley A. O Garro, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients301
Services billed to Medicare367
Different services or procedures11
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)229 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)34 services
  3. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)31 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)25 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes53%
  • Arthritis52%
  • Depression51%
  • Chronic kidney disease50%

Hospitals where Ainsley A. O Garro works

Medicare's Facility Affiliation Data lists Ainsley A. O Garro at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Northwest Hospital CenterRandallstown, MD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 210040

Practice locations

Addresses where Ainsley A. O Garro is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ainsley A. O Garro as a member of these groups (CMS data updated October 2, 2026).

  • Emergency Medicine Associates P.A., P.C.714 clinicians in the group
  • Northwest Hospital Center Inc87 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Maryland →

Other physician assistants in Westminster

Clinicians with the same Medicare primary specialty in Westminster, MD — not a recommendation.

All physician assistants in Westminster →

Other clinicians in Emergency Medicine Associates P.A., P.C.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPA
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1841404720
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians